青岛电网输电线路鸟害故障分析与防范措施

Analysis and Prevention Countermeasures of Bird-caused Damages for Transmission Lines in Qingdao Power Grid

针对青岛电网输电线路2007年至今发生的跳闸进行分类统计,分析发现青岛电网鸟害在35 kV电压等级线路设备发生的概率远低于110 kV线路和220 kV线路;鸟巢短路是35 kV线路鸟害故障的主要原因,鸟粪闪络是110 kV和220 kV线路鸟害故障的主要原因;鸟害故障总体上有两个高发期:3-5月的05∶00-12∶00和8-11月的02∶00-06∶00。提出鸟害分布图量化绘制方法,根据鸟害系数修正专业化巡视周期和防鸟害综合治理措施,研究结果可为输电线路运行维护中防鸟害工作提供参考。

Statistics of transmission lines trip in Qingdao power grid since 2007 are classified in this paper.According to the statistics,the occurrence of bird-caused damage on the 35 kV is far lower than that on the 110 kV and 220 kV transmission lines.The Nest is the main cause of bird-caused damage on the 35 kV transmission lines,the bird’s dropping flashover is the main cause of bird-caused damage on the 110 kV and 220 kV transmission lines.The bird-caused damages are mainly concentrated from 05∶00 to 12∶00 in March to May and from 02∶00 to 6∶00 in August to November.The quantitative methods of the risk distribution map of bird-caused damages are proposed,the specialized inspection period of transmission lines are update according to the bird coefficient,anti-bird measures are also supplied.The research results can provide reference for the anti-bird damage work in the maintenance operation of the transmission line.